Some molecules act as both hormones and neurotransmitters. For example, norepinephrine is released into the blood by the adrenal glands as a hormone, but it also released as a neurotransmitter by sympathetic nerve endings.While there are similarities between these two chemical messengers, there are some obvious differences.or example, norepinephrine is released into the blood by the adrenal glands as a hormone, but it also released as a neurotransmitter by sympathetic nerve endings. While there are similarities between these two chemical messengers, there are some obvious differences.
What is the largest US bill printed? For public use in the US, $100 is currently the highest-value bill  issued.    At one time $500, $1,000, $5,000 and $10,000 were also printed.  Printing of all higherâ¦ denomination bills was suspended in 1945 due  to low demand.
The largest bill currently in circulation in the US is $100.  Distribution of all larger denominations ($500, $1,000, $5,000, and  $10,000) was halted in July 1969 by presid â¦ ential order.he largest currently in use is $100.00. There may be some $500.00, $1,000.00, $5,000.00 and $10,000.00 bills still in circulation (the government stopped printing them during â¦ WWII). These bills are still worth the amount of money printed on them.